DHHS. NIH. National Eye Institute.
The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.
This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.
DHHS. NIH. National Eye Institute.
University of California Berkeley Wellness.
DHHS. NIH. Office of Dietary Supplements.
OSU. LPI. Micronutrient Information Center.
Merck Manual of Diagnosis and Therapy.
DHHS. NIH. National Library of Medicine.
Read about the function, sources, and intake recommendations for zinc.